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e2fsck.conf(5)                                                  e2fsck.conf(5)

       e2fsck.conf - Configuration file for e2fsck

       e2fsck.conf  is  the configuration file for e2fsck(8).  It controls the
       default behavior of  e2fsck(8)  while  it  is  checking  ext2  or  ext3

       The  e2fsck.conf  file uses an INI-style format.  Stanzas, or top-level
       sections, are delimited by square braces: [ ].   Within  each  section,
       each  line  defines  a  relation, which assigns tags to values, or to a
       subsection, which contains further relations or subsections.  An  exam-
       ple  of  the  INI-style  format used by this configuration file follows

                 tag1 = value_a
                 tag1 = value_b
                 tag2 = value_c

            [section 2]
                 tag3 = {
                      subtag1 = subtag_value_a
                      subtag1 = subtag_value_b
                      subtag2 = subtag_value_c
                 tag1 = value_d
                 tag2 = value_e

       Comments are delimited by a semicolon (';') or a hash  ('#')  character
       at  the beginning of the comment, and are terminated by the end of line

       Tags and values must be quoted using  double  quotes  if  they  contain
       spaces.  Within a quoted string, the standard backslash interpretations
       apply: "\n" (for the newline character), "\t" (for the tab  character),
       "\b" (for the backspace character), and "\\" (for the backslash charac-

       The following stanzas are used in the e2fsck.conf file.  They  will  be
       described in more detail in future sections of this document.

              This   stanza  contains  general  configuration  parameters  for
              e2fsck's behavior.

              This stanza allows the administrator to reconfigure  how  e2fsck
              handles various filesystem inconsistencies.

              This  stanza  controls  when  e2fsck will attempt to use scratch
              files to reduce the need for memory.

THE [options] STANZA
       The following relations are defined in the [options] stanza.

              If this relation is set to a boolean value of true, then if  the
              user  interrupts  e2fsck  using  ^C,  and  the filesystem is not
              explicitly flagged as containing errors, e2fsck will  exit  with
              an  exit  status  of  0 instead of 32.  This setting defaults to

              Unfortunately, due to Windows' unfortunate  design  decision  to
              configure  the  hardware clock to tick localtime, instead of the
              more proper and less error-prone UTC time, many users end up  in
              the  situation  where the system clock is incorrectly set at the
              time when e2fsck is run.

              Historically this was usually due to some  distributions  having
              buggy  init  scripts  and/or  installers  that  didn't correctly
              detect this case and take appropriate countermeasures.  However,
              it's still possible, despite the best efforts of init script and
              installer authors to not be able to  detect  this  misconfigura-
              tion,  usually  due  to  a buggy or misconfigured virtualization
              manager or the installer not having access  to  a  network  time
              server during the installation process.  So by default, we allow
              the superblock times to be fudged by up to 24 hours.   This  can
              be disabled by setting accept_time_fudge to the boolean value of
              false.  This setting defaults to true.

              The e2fsck(8) program has some hueristics that assume  that  the
              system clock is correct.  In addition, many system programs make
              similar assumptions.  For example, the UUID library  depends  on
              time  not going backwards in order for it to be able to make its
              guarantees about issuing universally unique ID's.  Systems  with
              broken  system clocks, are well, broken.  However, broken system
              clocks, particularly in embedded systems, do  exist.   If  true,
              e2fsck will not abort a preen check if it detects a last mounted
              or last write time in the superblock in the future.   This  set-
              ting defaults to false.

              This  boolean  relation  controls  whether or not e2fsck(8) will
              offer to clear the test_fs flag if the ext4 filesystem is avail-
              able on the system.  It defaults to true.

              This  boolean  relation  controls  whether  or  not the interval
              between filesystem checks (either based on  time  or  number  of
              mounts)  should  be doubled if the system is running on battery.
              This setting defaults to true.

              When e2fsck(8) repacks a indexed directory, reserve  the  speci-
              fied  percentage of empty space in each leaf nodes so that a few
              new entries can be added to the directory without splitting leaf
              nodes,  so  that  the  average  fill ratio of directories can be
              maintained at a higher, more  efficient  level.   This  relation
              defaults to 20 percent.

THE [problems] STANZA
       Each tag in the [problems] stanza names a problem code specified with a
       leading "0x" followed by six hex digits.  The value of  the  tag  is  a
       subsection  where the relations in that subsection override the default
       treatment of that particular problem code.

       Note that inappropriate settings in this stanza  may  cause  e2fsck  to
       behave  incorrectly,  or even crash.  Most system administrators should
       not be making changes to this section without referring to source code.

       Within each problem code's subsection, the following tags may be used:

              This  relation  allows  the  message  which is printed when this
              filesystem inconsistency is detected to be overridden.

              This boolean relation overrides the default behavior controlling
              whether  this  filesystem  problem should be automatically fixed
              when e2fsck is running in preen mode.

       no_ok  This boolean relation overrides the default behavior determining
              whether  or not the filesystem will be marked as inconsistent if
              the user declines to fix the reported problem.

              This boolean relation overrides whether the default  answer  for
              this problem (or question) should be "no".

              This boolean relation overrides the default behavior controlling
              whether or not  the  description  for  this  filesystem  problem
              should be suppressed when e2fsck is running in preen mode.

              This boolean relation overrides the default behavior controlling
              whether or not  the  description  for  this  filesystem  problem
              should be suppressed when e2fsck is run with the -n option.

THE [scratch_files] STANZA
       The following relations are defined in the [scratch_files] stanza.

              If the directory named by this relation exists and is writeable,
              then e2fsck will attempt to use this directory to store  scratch
              files instead of using in-memory data structures.

              If  this relation is set, then in-memory data structures be used
              if the number of directories in the filesystem  are  fewer  than
              amount specified.

              This relation controls whether or not the scratch file directory
              is used instead of an in-memory  data  structure  for  directory
              information.  It defaults to true.

       icount This relation controls whether or not the scratch file directory
              is used instead of an in-memory  data  structure  when  tracking
              inode counts.  It defaults to true.

       The  following recipe will prevent e2fsck from aborting during the boot
       process when a filesystem contains orphaned files.  (Of course, this is
       not  always  a  good idea, since critical files that are needed for the
       security of the system could potentially  end  up  in  lost+found,  and
       starting  the  system without first having a system administrator check
       things out may be dangerous.)

                 0x040002 = {
                      preen_ok = true
                      description = "@u @i %i.  "

              The configuration file for e2fsck(8).


E2fsprogs version 1.41.11         March 2010                    e2fsck.conf(5)

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